Expansion-joint.



c. R. SPEIGHT; EXPANSION JOINT. APPLICATION FILED BIIPT. 22, 1 910.

Patented 0ct.24,191 1.

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sinrs'rrr, or nuncnw, ncnrn canonina.

EXPANSION-ZI'OINT.

Patented that, 2d, lh-ilit,

Serial Ito. 583.288. 3 i

specification of Letters Patent.

Application filed September 22, 1910'.

reenter,

In these drawings 3 denotes the coupling proper which is here shown asbeing of tuhular construction, having"- internal screw threads. Withinthe coupling 3 is, a ring a which acts as an abutment for packing 5which is between the ring 4: and sleeve nut 9. The ring 4: has a holetherein, preferably equal to the outside diameter of the smaller pipe 7,which is to be connected to the larger pipe 8, the said larger pipebeing of such diameter as to 3, whereas the smaller pipe 7 is encircledhy To all whom it may concern:

Be it known that l, CRITTENDEN R. Srnrcrrr, a citizen of thellnitedStates of America, and resident of Burgaw, in the county of Fender andState ofllorth Carolina, have invented certain new and usefulImprovements in Expansion-Joints, of which the following is aspecification.

This invention relates to water distribution andparticularly to a pipecoupling, the invention relating specifically to means for couplingpipes of unequal diameters, the same being known ordinarily as anexpansion :i-Ollll].

An ohject of this invention is to provide novel means for connectingpipes oi unequal. sizes and the principle involved may be utilized inconnection with pipes of greatly difierent diameters or where the sizesdifiler hut minutely,

ternal diameter equal to the interna'h dis. ameter of the coupling 3, sothat the of the coupling 3, The end of the pipe is shown as engaging therin 4t and ,it" purpose of the inventor to ave pi e8 hear against thering 4 to such an. en em as to hold it in contact with the packing 5 sothat when the sleeve nut 9 is screwed in against the packing 5, saidpacking is torced in contact with the pipe 7 to such an extent as toeffect a tight joint between the packing 5 and the said pipe 7 andpreventing the escape of steam, water or the like between the sleeve nutand the pipe 7.

From an inspection of the drawing, be apparent that the principle can beutilized as has been heretofore stated in connection with relativelylarge and relatively small pipes which can be coupled together so longas the sleeve nut 9 fits the coupling 3 and the larger pipe is of a sizeto fit the said coupling. lhe sleeve nut may be of any configuration solong as it has means for engaging a tool such as a wrench for turning itand screwing it in the coupling, and I do not, therefore, wish to belimited with rebut it will he OOVlOllS from the following description ofthe invention that the utility of the device in its practicalapplication will he very great when used in connection with heatingapparatus or dry ltilns as it has been successfully used in kilns priorto this application.

A further object of this invention is to provide a joint, the parts ofwhich are readily assembled, meansheing provided for effecting a steamtight joint between the sections of piping in such a manner that thejoint will withstand unusual pressure without leaking.

*With the foregoing and other objects in view, the invention consists inthe details of construction and in the arrangement and combination ofparts to be hereinafter more fully set forth and claimed.

In describing the invention in detail, reference will he had to theaccompanying drawings forming part of this specification wherein likecharacters denote corresponding parts in the several views, and in whichFigure 1 illustrates a view in elevation of a pipe coup-ling showingfragments of two pipes of unequal diameters which are applied to theends of the coupling; and Fig. 2 illustrates a longitudinal verticalsectional view oi the parts shown in Fig. 1.

or ring or to the construction of the coupling so far as itsconfiguration is concerned.

1 claim- In an expansion joint, a threaded coupling, a sleeve threadedinto one end pf said coupling, a pipe movably mounted 1n said sleeve, aring movably mounted on said movably mounted pipe, packing positioned between. said sleeve and said movable ring, and

be threaded into the couplinga sleeve nut which sleeve nut has an errsaid" sleeve nut is threaded to engage the threads a ill I spect to theconstruction of the sleeve nut a pipe threaded into the oppositeend ofsaid coupling and adapted to normally abut said ring, saidlast-mentioned pipe belng adjustable with respect to said sleeve tomaterially S elter the length of said last-mentioned pipe ,wby acorresponding opposite adjustment of .sgiid' sleeve.

In testimony whereof, I afiixmy signature in thepresence of twowitnesses.

CRITTENDEN R. SPEIGHT.

Witnesses:

J. M. MYERS, C. C. BRANCH;

